WebServices: how to accept http OPTION method request?

Question

We are implementing few WebServices and we have to implement WS that respect CORS mechanism described: http://www.html5rocks.com/en/tutorials/cors/#toc-adding-cors-support-to-the-server
The main problem is that we cannot create VI that accept "OPTIONS" http method.
So what we have to do right now? Any solution?

Answer 1

Hi Matt,
first thanks for you answer....change the Web Server is not a way, i mean here there are few developer teams and we have to integrate services developed with .net and LabView.
About your questions:
We use PUT because Restfull web server uses it: http://www.restapitutorial.com/lessons/httpmethods.html and labview permits that methods
data&colon it is just an encoding error on this forum...it is just a simple json data like data:{"data":"test"}
the response of web server has to be normal, the main problem is that the VI it is not called anyway because the preflight OPTIONS generate a 404 error
there is nothing special about the VI...just do a normal one and try.
So to replicate the problem:
1) develop a simple VI with PUT method
2) develop an html with a simple button and ajax call as i wrote on earlier posts.
3) run the page on different domain so CORS is needed
4) check chrome network panel and notice that OPTIONS call generates the 404 error on browser
I just repeat that it is the standard way to implement CORS...so how to do it with LabView Web Server?